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Daily update on 20260312-004950 by Nitload Youmu. Additional Message : use one single index mux as replacement of two slab allocators for L4.

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Signed-off-by: Nitload <YoumuLiu_NSI@whv0t.onmicrosoft.com>
This commit is contained in:
Nitload
2026-03-12 00:49:50 +08:00
parent 9b5dfec9d5
commit 0c1887d8f8
7 changed files with 197 additions and 88 deletions
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StgSharp.Common/HighPerformance/Memory/L4.cs
+19 -23
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@@ -2,8 +2,8 @@
// -----------------------------------------------------------------------
// file="L4"
// Project: StgSharp
// AuthorGroup: Nitload
// Copyright (c) Nitload. All rights reserved.
// AuthorGroup: Nitload Space
// Copyright (c) Nitload Space. All rights reserved.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
@@ -42,33 +42,36 @@ namespace StgSharp.HighPerformance.Memory
private const int CacheLineCount = 8192;
private const int PredictionCount = 2048;
private const int PredictionLeaseAhead = 1024;
private const int PredictionLeastAhead = 1024;
private readonly CacheLineData* _data;
private readonly EvictionArray* _eviction;
private readonly CacheLineHead* _head;
private readonly CacheLinePrediction* _prediction;
private bool _disposed;
private int _activeCount;
private int _aheadCount;
private int _maxId;
private readonly nuint _baseAddress;
private readonly SlabAllocator<CacheLineData> _cacheLineAllocator;
private readonly SlabAllocator<CacheLineHead> _entryAllocator;
private readonly SwissTable _map;
private readonly UnmanagedStack<int> _idMux;
public L4()
{
int cacheSize = Unsafe.SizeOf<CacheLineData>() * CacheLineCount;
int entrySize = Unsafe.SizeOf<CacheLineHead>() * CacheLineCount;
int stackSize = sizeof(int) * CacheLineCount;
int mapSize = SwissTable.RequestedNativeMemorySize;
int pprvSize = Unsafe.SizeOf<EvictionArray>();
_baseAddress = (nuint)NativeMemory.AlignedAlloc((nuint)(cacheSize + entrySize + mapSize), 16);
int predictionSize = Unsafe.SizeOf<CacheLinePrediction>() * PredictionCount;
int rrpvSize = Unsafe.SizeOf<EvictionArray>();
_baseAddress = (nuint)NativeMemory.AlignedAlloc((nuint)(cacheSize + entrySize + stackSize + mapSize + predictionSize + rrpvSize), 16);
nuint _buffer = _baseAddress;
_cacheLineAllocator = SlabAllocator.FromBuffer<CacheLineData>(_buffer, CacheLineCount, _ => { });
_entryAllocator = SlabAllocator.FromBuffer<CacheLineHead>(_buffer + (nuint)cacheSize, CacheLineCount, _ => { });
_data = (CacheLineData*)_buffer;
_head = (CacheLineHead*)(_buffer + (nuint)cacheSize);
_prediction = (CacheLinePrediction*)(_buffer + (nuint)(cacheSize + entrySize));
_map = SwissTable.Create(_baseAddress + (nuint)(cacheSize + entrySize), _ => { });
_eviction = (EvictionArray*)(_baseAddress + (nuint)(cacheSize + entrySize + mapSize));
}
@@ -89,13 +92,12 @@ namespace StgSharp.HighPerformance.Memory
return;
}
_disposed = true;
_map.Dispose();
NativeMemory.AlignedFree((void*)_baseAddress);
GC.SuppressFinalize(this);
}
public CacheLine Map(
nuint origin
)
public CacheLine Map(nuint origin)
{
if (_map.TryGet(origin, out nuint entryHandle))
{
@@ -114,9 +116,7 @@ namespace StgSharp.HighPerformance.Memory
private partial void Prefetch();
private partial bool TestHit(
nuint origin
);
private partial bool TestHit(nuint origin);
public ref struct CacheLine : IDisposable
{
@@ -125,11 +125,7 @@ namespace StgSharp.HighPerformance.Memory
private ref int _refCount;
private nuint _handle;
internal CacheLine(
nuint handle,
ref int activeCount,
ref int cacheRefCount
)
internal CacheLine(nuint handle, ref int activeCount, ref int cacheRefCount)
{
_handle = handle;
_refCount = ref cacheRefCount;